:root {
    --bg: #0a0b10;
    --bg-soft: #12141c;
    --bg-card: #171a24;
    --cyan: #3ee0ea;
    --pink: #ff5f9e;
    --text: #e9edf5;
    --text-dim: #9aa3b4;
    --line: rgba(255,255,255,.08);
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }

  html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.7;
    overflow-x: hidden;
  }

  a { color: inherit; text-decoration: none; }
  img { display: block; max-width: 100%; }

  .wrap {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 20px;
  }

  section { scroll-margin-top: 78px; }

  /* ---------- 导航 ---------- */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
  }
  .site-header::before {
    content: "";
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 100vw;
    height: 100%;
    background: rgba(10,11,16,.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
    z-index: -1;
  }

  .nav-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    height: 64px;
  }

  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 800;
    letter-spacing: .5px;
    white-space: nowrap;
  }
  .brand img { height: 32px; width: auto; }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
    list-style: none;
  }
  .nav-links a {
    position: relative;
    font-size: 14px;
    color: var(--text-dim);
    padding: 6px 0;
    transition: color .2s;
    white-space: nowrap;
  }
  .nav-links a::after {
    content: "";
    position: absolute;
    left: 0; bottom: 0;
    width: 100%;
    height: 2px;
    background: var(--cyan);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .25s;
  }
  .nav-links a:hover,
  .nav-links a.active { color: var(--cyan); }
  .nav-links a.active::after,
  .nav-links a:hover::after { transform: scaleX(1); }

  .menu-toggle {
    display: none;
    width: 40px; height: 40px;
    background: transparent;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--text);
    font-size: 18px;
    cursor: pointer;
  }

  .mobile-panel {
    display: none;
    flex-direction: column;
    gap: 2px;
    padding: 10px 20px 18px;
  }
  .mobile-panel a {
    padding: 12px 4px;
    font-size: 15px;
    color: var(--text-dim);
    border-bottom: 1px solid var(--line);
  }
  .mobile-panel.open { display: flex; }

  /* ---------- 首屏 ---------- */
  .hero {
    position: relative;
    min-height: 92vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    isolation: isolate;
  }
  .hero-bg {
    position: absolute;
    inset: 0;
    z-index: -2;
  }
  .hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 30%;
  }
  .hero-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
      linear-gradient(90deg, rgba(10,11,16,.95) 0%, rgba(10,11,16,.65) 45%, rgba(10,11,16,.35) 100%),
      linear-gradient(0deg, rgba(10,11,16,1) 0%, rgba(10,11,16,0) 40%);
  }

  .hero-inner {
    position: relative;
    padding: 90px 0 80px;
    max-width: 640px;
  }

  .kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    letter-spacing: 2px;
    color: var(--cyan);
    border: 1px solid rgba(62,224,234,.35);
    background: rgba(62,224,234,.07);
    padding: 5px 14px;
    border-radius: 999px;
    margin-bottom: 22px;
  }
  .kicker i {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--pink);
    display: inline-block;
  }

  .hero h1 {
    font-size: clamp(48px, 9vw, 92px);
    line-height: 1.05;
    letter-spacing: 6px;
    font-weight: 900;
    margin-bottom: 24px;
    text-shadow: 0 6px 40px rgba(0,0,0,.6);
  }
  .hero h1 span { color: var(--cyan); }

  .hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 22px;
  }
  .hero-tags span {
    font-size: 13px;
    color: var(--text);
    padding: 4px 12px;
    border-radius: 6px;
    background: rgba(255,255,255,.08);
    border: 1px solid var(--line);
  }

  .hero-desc {
    color: #c3cad8;
    font-size: 15px;
    max-width: 480px;
    margin-bottom: 32px;
  }

  .btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 700;
    padding: 13px 32px;
    border-radius: 10px;
    transition: transform .2s, box-shadow .2s, background .2s;
    cursor: pointer;
  }
  .btn-primary {
    color: #04222a;
    background: linear-gradient(120deg, var(--cyan), #6cf0f4);
    box-shadow: 0 8px 28px rgba(62,224,234,.28);
  }
  .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 34px rgba(62,224,234,.4); }
  .btn-ghost {
    color: var(--text);
    border: 1px solid rgba(255,255,255,.25);
    background: rgba(255,255,255,.04);
  }
  .btn-ghost:hover { transform: translateY(-3px); border-color: var(--cyan); color: var(--cyan); }

  /* 弹幕层 */
  .danmaku-layer {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
    z-index: -1;
  }
  .dm {
    position: absolute;
    white-space: nowrap;
    font-size: 15px;
    color: rgba(255,255,255,.9);
    text-shadow: 0 1px 3px rgba(0,0,0,.9), 0 0 10px rgba(0,0,0,.7);
    animation: dm-move linear infinite;
  }
  .dm:nth-child(1) { top: 16%; animation-duration: 16s; }
  .dm:nth-child(2) { top: 27%; animation-duration: 22s; animation-delay: -4s; }
  .dm:nth-child(3) { top: 38%; animation-duration: 19s; animation-delay: -11s; }
  .dm:nth-child(4) { top: 51%; animation-duration: 14s; animation-delay: -7s; }
  .dm:nth-child(5) { top: 64%; animation-duration: 21s; animation-delay: -15s; }
  .dm:nth-child(6) { top: 75%; animation-duration: 18s; animation-delay: -2s; }

  @keyframes dm-move {
    from { transform: translateX(100vw); }
    to { transform: translateX(-110%); }
  }
  @media (prefers-reduced-motion: reduce) {
    .dm { animation: none; left: 30%; }
    .dm:nth-child(2n) { left: 10%; }
    .dm:nth-child(3n) { left: 55%; }
  }

  /* ---------- 通用区块 ---------- */
  .section-block { padding: 82px 0; }
  .section-alt { background: var(--bg-soft); }

  .sec-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 36px;
    flex-wrap: wrap;
  }
  .sec-head h2 {
    font-size: clamp(26px, 4vw, 36px);
    font-weight: 900;
    letter-spacing: 1px;
    line-height: 1.25;
  }
  .sec-head h2 em {
    font-style: normal;
    color: var(--pink);
  }
  .sec-head p {
    color: var(--text-dim);
    font-size: 14px;
    max-width: 420px;
  }

  /* ---------- 本周热播 ---------- */
  .poster-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 18px;
  }
  .poster-card {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    background: var(--bg-card);
    aspect-ratio: 3 / 4;
    transition: transform .25s, box-shadow .25s;
    border: 1px solid var(--line);
  }
  .poster-card img {
    width: 100%; height: 100%;
    object-fit: cover;
  }
  .poster-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(6,8,13,.92) 0%, rgba(6,8,13,.15) 45%, transparent 70%);
  }
  .poster-meta {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    padding: 12px 10px;
    z-index: 2;
  }
  .poster-meta strong { display: block; font-size: 15px; font-weight: 800; }
  .poster-meta small { color: var(--text-dim); font-size: 12px; }
  .poster-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 36px rgba(0,0,0,.55);
  }
  .poster-card:hover .poster-meta strong { color: var(--cyan); }

  /* ---------- 排行榜 ---------- */
  .rank-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .rank-row {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 12px;
    transition: transform .22s, border-color .22s;
  }
  .rank-row:hover {
    transform: translateY(-3px);
    border-color: rgba(62,224,234,.5);
  }
  .rank-no {
    font-size: 22px;
    font-weight: 900;
    font-style: italic;
    width: 34px;
    text-align: center;
    color: var(--text-dim);
    flex: none;
  }
  .rank-row:nth-child(1) .rank-no { color: var(--pink); }
  .rank-row:nth-child(2) .rank-no { color: var(--cyan); }
  .rank-row:nth-child(3) .rank-no { color: #ffb84d; }
  .rank-thumb {
    width: 48px; height: 64px;
    border-radius: 6px;
    overflow: hidden;
    flex: none;
    background: #000;
  }
  .rank-thumb img { width: 100%; height: 100%; object-fit: cover; }
  .rank-main { flex: 1; min-width: 0; }
  .rank-title {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 8px;
  }
  .rank-title span:first-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .rank-title b { color: var(--cyan); font-size: 14px; flex: none; }
  .bar-track {
    height: 6px;
    border-radius: 999px;
    background: rgba(255,255,255,.08);
    overflow: hidden;
  }
  .bar-fill {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--pink), var(--cyan));
  }

  /* ---------- 弹幕墙 ---------- */
  .talk-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .talk-card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 22px;
    transition: transform .25s, box-shadow .25s;
  }
  .talk-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 34px rgba(0,0,0,.5);
  }
  .talk-text {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #fff;
  }
  .talk-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-dim);
  }
  .talk-like {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--pink);
    font-weight: 700;
  }
  .talk-like i {
    display: inline-block;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--pink);
    box-shadow: 0 0 10px var(--pink);
  }

  /* ---------- 频道 ---------- */
  .channel-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .channel-card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 16px;
    overflow: hidden;
    transition: transform .25s, border-color .25s;
  }
  .channel-card:hover {
    transform: translateY(-3px);
    border-color: rgba(62,224,234,.45);
  }
  .channel-shot {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: #000;
  }
  .channel-shot img {
    width: 100%; height: 100%;
    object-fit: cover;
    object-position: top center;
  }
  .channel-body { padding: 18px 20px 22px; }
  .channel-body h3 { font-size: 18px; margin-bottom: 8px; }
  .channel-body p { font-size: 14px; color: var(--text-dim); }

  /* ---------- 使用指南 ---------- */
  .guide-flex {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 56px;
    align-items: start;
  }
  .phone-shell {
    position: relative;
    border-radius: 32px;
    padding: 12px;
    background: linear-gradient(160deg, #1d2130, #0d0f16);
    border: 1px solid rgba(255,255,255,.12);
    box-shadow: 0 30px 70px rgba(0,0,0,.6);
  }
  .phone-shell::before {
    content: "";
    position: absolute;
    top: 18px; left: 50%;
    transform: translateX(-50%);
    width: 72px; height: 6px;
    border-radius: 999px;
    background: rgba(255,255,255,.16);
    z-index: 2;
  }
  .phone-shell img {
    width: 100%;
    border-radius: 24px;
    display: block;
    aspect-ratio: 9 / 16;
    object-fit: cover;
    object-position: top center;
  }

  .step-list { display: flex; flex-direction: column; gap: 4px; }
  .step-item {
    display: grid;
    grid-template-columns: 44px 1fr;
    gap: 18px;
    padding: 18px 0;
    border-bottom: 1px solid var(--line);
  }
  .step-item:last-child { border-bottom: none; }
  .step-idx {
    width: 38px; height: 38px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 16px;
    color: var(--cyan);
    background: rgba(62,224,234,.1);
    border: 1px solid rgba(62,224,234,.3);
  }
  .step-item h3 { font-size: 16px; margin-bottom: 6px; }
  .step-item h3 b { color: var(--cyan); font-weight: 800; }
  .step-item p { font-size: 14px; color: var(--text-dim); margin-bottom: 4px; }
  .step-item p:last-child { margin-bottom: 0; }
  .step-item p.tip { color: #d3a04a; }

  /* ---------- FAQ ---------- */
  .faq-group { margin-bottom: 34px; }
  .faq-group:last-child { margin-bottom: 0; }
  .faq-group-title {
    font-size: 15px;
    font-weight: 800;
    color: var(--pink);
    letter-spacing: 1px;
    margin-bottom: 14px;
    padding-left: 12px;
    border-left: 3px solid var(--pink);
  }
  .faq-item {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 10px;
    margin-bottom: 10px;
    overflow: hidden;
  }
  .faq-item summary {
    list-style: none;
    cursor: pointer;
    padding: 16px 20px;
    font-size: 15px;
    font-weight: 700;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    transition: color .2s;
  }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-item summary::after {
    content: "+";
    font-size: 20px;
    color: var(--cyan);
    flex: none;
    transition: transform .25s;
  }
  .faq-item[open] summary { color: var(--cyan); }
  .faq-item[open] summary::after { transform: rotate(45deg); }
  .faq-answer {
    padding: 0 20px 18px;
    font-size: 14px;
    color: var(--text-dim);
  }
  .faq-answer p { margin-bottom: 8px; }
  .faq-answer p:last-child { margin-bottom: 0; }

  .data-table {
    border-collapse: collapse;
    width: 100%;
    margin: 10px 0;
    font-size: 13px;
  }
  .data-table th,
  .data-table td {
    border: 1px solid var(--line);
    padding: 8px 10px;
    text-align: left;
  }
  .data-table th { color: #fff; background: rgba(255,255,255,.04); }
  .data-table td { color: var(--text-dim); }

  .shot-inline {
    margin: 12px 0;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--line);
    max-width: 240px;
  }

  /* ---------- 下载 ---------- */
  .download {
    position: relative;
    padding: 100px 0;
    text-align: center;
    overflow: hidden;
    isolation: isolate;
  }
  .dl-bg {
    position: absolute;
    inset: 0;
    z-index: -2;
  }
  .dl-bg img { width: 100%; height: 100%; object-fit: cover; }
  .dl-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(6,7,11,.82);
  }
  .download h2 {
    font-size: clamp(28px, 5vw, 42px);
    font-weight: 900;
    margin-bottom: 16px;
    letter-spacing: 1px;
  }
  .download h2 em { font-style: normal; color: var(--cyan); }
  .download > .wrap > p {
    color: var(--text-dim);
    max-width: 520px;
    margin: 0 auto 34px;
    font-size: 15px;
  }
  .download .btn-row { justify-content: center; }

  /* 备用横图条 */
  .banner-strip {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 44px;
  }
  .banner-strip figure {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--line);
    position: relative;
  }
  .banner-strip img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
  }
  .banner-strip figcaption {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    padding: 20px 14px 10px;
    font-size: 13px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(0deg, rgba(6,8,13,.92), transparent);
  }

  /* ---------- 页脚 ---------- */
  .site-footer {
    border-top: 1px solid var(--line);
    padding: 34px 0 40px;
    background: #07080c;
  }
  .footer-inner {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
    text-align: center;
    font-size: 12.5px;
    color: #6f7787;
    line-height: 1.9;
  }
  .footer-inner a { color: #6f7787; transition: color .2s; }
  .footer-inner a:hover { color: var(--cyan); }
  .footer-inner .copy { color: #828b9c; }
  .footer-inner time { color: #6f7787; }

  /* ---------- 响应式 ---------- */
  @media (max-width: 1024px) {
    .poster-grid { grid-template-columns: repeat(3, 1fr); }
    .talk-grid { grid-template-columns: repeat(2, 1fr); }
    .talk-grid .talk-card:last-child { grid-column: span 2; }
    .channel-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .guide-flex { grid-template-columns: 240px 1fr; gap: 34px; }
    .banner-strip { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  }

  @media (max-width: 900px) {
    .nav-links { display: none; }
    .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  }

  @media (max-width: 768px) {
    .hero { min-height: 88vh; }
    .hero-inner { padding: 70px 0 60px; }
    .hero h1 { letter-spacing: 3px; }
    .section-block { padding: 58px 0; }
    .poster-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .talk-grid { grid-template-columns: 1fr; }
    .talk-grid .talk-card:last-child { grid-column: auto; }
    .channel-grid { grid-template-columns: 1fr; }
    .guide-flex { grid-template-columns: 1fr; gap: 32px; }
    .phone-shell { max-width: 260px; margin: 0 auto; }
    .banner-strip { grid-template-columns: 1fr; }
    .rank-row { gap: 10px; padding: 10px 12px; }
    .rank-thumb { width: 42px; height: 56px; }
    .rank-title { font-size: 14px; }
    .btn { padding: 12px 24px; font-size: 14px; }
    .download { padding: 70px 0; }
    .dm { font-size: 13px; }
  }